What night is Lost on in the US?

On the ABC website, it says 'Wednesday 10/9c'.....but looking everywhere 
else, it says it is on Thursdays evenings. How come this discrepancy? :/

I'm in the UK, so I just need to know when to look for a torrent you see. 
Cheers.
-- 
Slitheen.
"I've searched the phrase 'I shall walk the Earth and my hunger shall know

no bounds', but I keep getting redirected to Weight Watchers!"
 Ianto Jones, Torchwood.